Ring Compressor Phase Single Output Power 0.5 hp Maximum Operating Pressure 46.1 in wc Maximum Flow Rate 56 cfm Maximum Vacuum 45 in wc Voltage 115/230V AC Inlet Size 1 1/4 in Inlet Type NPT Inlet Gender Female Outlet Size 1 1/4 in Outlet Type NPT Outlet Gender Female Current Rating 5.0/2.5 A Frequency 60 Hz Housing Material Aluminum